MDEV-14283 : Fix Solaris 10 build.

- introduce system check for posix_memalign (not available on Solaris 10)
- Disable dtrace probes, to fix weird link errors in mariabackup

cmake/dtrace.cmake

@@ -43,6 +43,7 @@ MACRO(CHECK_DTRACE)
  IF(DTRACE AND NOT CMAKE_SYSTEM_NAME MATCHES "FreeBSD"
      AND NOT BUGGY_GCC_NO_DTRACE_MODULES
      AND NOT BUGGY_LINUX_DTRACE) 
+     AND NOT SYSTEM_NAME MATCHES "SunOS")
    SET(ENABLE_DTRACE ON CACHE BOOL "Enable dtrace")
  ENDIF()
  SET(HAVE_DTRACE ${ENABLE_DTRACE})

storage/innobase/CMakeLists.txt

@@ -85,6 +85,12 @@ SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -DUNIV_DEBUG -DUNIV_SYNC_DEB
 CHECK_FUNCTION_EXISTS(sched_getcpu  HAVE_SCHED_GETCPU)
 
 IF(NOT MSVC)
+
+  CHECK_FUNCTION_EXISTS(posix_memalign HAVE_POSIX_MEMALIGN)
+  IF(HAVE_POSIX_MEMALIGN)
+    ADD_DEFINITIONS(-DHAVE_POSIX_MEMALIGN)
+  ENDIF()
+
   # either define HAVE_IB_GCC_ATOMIC_BUILTINS or not
   # workaround for old gcc on x86, gcc atomic ops only work under -march=i686
   IF(CMAKE_SYSTEM_PROCESSOR STREQUAL "i686" AND CMAKE_COMPILER_IS_GNUCC AND

storage/innobase/buf/buf0buf.cc

@@ -86,10 +86,13 @@ inline void* aligned_malloc(size_t size, size_t align) {
     void *result;
 #ifdef _MSC_VER
     result = _aligned_malloc(size, align);
-#else
+#elif defined (HAVE_POSIX_MEMALIGN)
     if(posix_memalign(&result, align, size)) {
 	    result = 0;
     }
+#else
+    /* Use unaligned malloc as fallback */
+    result = malloc(size);
 #endif
     return result;
 }

storage/xtradb/CMakeLists.txt

@@ -93,6 +93,12 @@ SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -DUNIV_DEBUG -DUNIV_SYNC_DEB
 CHECK_FUNCTION_EXISTS(sched_getcpu  HAVE_SCHED_GETCPU)
 
 IF(NOT MSVC)
+
+  CHECK_FUNCTION_EXISTS(posix_memalign HAVE_POSIX_MEMALIGN)
+  IF(HAVE_POSIX_MEMALIGN)
+    ADD_DEFINITIONS(-DHAVE_POSIX_MEMALIGN)
+  ENDIF()
+
   # either define HAVE_IB_GCC_ATOMIC_BUILTINS or not
   # workaround for old gcc on x86, gcc atomic ops only work under -march=i686
   IF(CMAKE_SYSTEM_PROCESSOR STREQUAL "i686" AND CMAKE_COMPILER_IS_GNUCC AND

storage/xtradb/buf/buf0buf.cc

@@ -102,10 +102,13 @@ inline void* aligned_malloc(size_t size, size_t align) {
     void *result;
 #ifdef _MSC_VER
     result = _aligned_malloc(size, align);
-#else
+#elif defined (HAVE_POSIX_MEMALIGN)
     if(posix_memalign(&result, align, size)) {
 	    result = 0;
     }
+#else
+    /* Use unaligned malloc as fallback */
+    result = malloc(size);
 #endif
     return result;
 }